2007 Fiscal Year Final Research Report Summary
Dynamic Oxygen-Enhanced MR Imaging. Development for Clinical Stage Classification of COPD and TherapeuticEffect Evaluation
| Project/Area Number |
18591346
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Radiation science
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| Research Institution | Kobe University |
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Principal Investigator |
OHNO Yoshiharu Kobe University, Graduate School of Medicine, Scientific Researcher (30324924)
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| Co-Investigator(Kenkyū-buntansha) |
SUGIMURA Kazuro Kobe University, Graduate School of Medicine, Professor (00136384)
FUJII Masahiko Kobe University, Hospital, Associate Professor (00228959)
TAKENAKA Daisuke Kobe University, Graduate School of Medicine, Associate Professor (60258233)
MATSUMOTO Sumiaki Kobe University, Graduate School of Medicine, Scientific Researcher (60397833)
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| Project Period (FY) |
2006 – 2007
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| Keywords | Life science / X-ray / Pulmonary Medicine / Radiology / Magnetic Resonance |
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| Research Abstract |
The purpose of this study was to develop the dynamic oxygen-enhanced MR imaging for clinical stage classification and therapeutic effect evaluation in COPD subjects.
Non-smoking subjects and COPD patients in our institution were included in this study. All patients were assessed ATS/ERS classification of COPD or GOLD classifications. All subjects were prospectively underwent pulmonary function test, dynamic oxygen-enhanced MR imaging, perfusion scan and/ or CT. Mean relative enhancement ratio and wash-in time on dynamic oxygen-enhanced MRI and CT-base functional lung volume on quantitative CT were computationally calculated by using our proprietary software. To compare the efficacy of dynamic oxygen-enhanced MRI and quantitative CT for pulmonary functional loss assessment, both indexes were correlated with pulmonary functional parameters. To determine the efficacy of two methods for clinical stage classification, the four clinical stage groups' mean relative enhancement ratio and CT-based functional lung volume were statistically compared. In addition, this study was also included the multicenter study for assessment of oxygen-enhanced MRI, and compared capability of oxygen-enhancement and CP-based functional lung volume in clinical stages in COPD. Correlations of both indexes with pulmonary functional parameters were significant (p<0.0001). Pulmonary functional parameters and mean relative enhancement ratio for the four clinical groups showed significant differences (p<0.05). CT-based functional lung volumes of ‘Smokers without COPD' and ‘Mild COPD' were significantly different from those for 'Moderate COPD' and 'Severe or Very Severe COPD' (p<0.05). In conclusion, dynamic oxygen-enhanced MRI is effective for pulmonary functional loss assessment and clinical stage classification of smoking-related COPD as well as quantitative CT.
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[Journal Article] O_2-enhanced MRI vs. CT: Multi-center Study for the Clinical Stage Classification of Smoking-related COPD2008
Author(s)
Ohno, Y, Iwasawa, T, Seo, JB, Kovama, H., Takahashi, H ,Nishimura, Y, Sugimura, K
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Journal Title
Am J Respir Crit Care Med (in press)
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Dynamic oxygen-enhanced MRI versus quantitative CT: pulmonary functional loss assessment and clinical stage classification of smoking-related COPD2008
Author(s)
Ohno, Y, Koyama, H, Nogami, M, Takenaka, D. Matsumoto, S., Ohara, Sugimura, K
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Journal Title
AJRAm J Roentgenol 190(2)
Pages: W93-99
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Oxygen-enhanced MRI versus Quantitative CT: Multicenter Trial for Pulmonary Functional Loss Assessment and Clinical Stage Classification of Smoking-Related COPD in Asia2007
Author(s)
Ohno, Y. Iwasawa, T, Seo ,TR, Knvama, H, Takahashi, H, Oh, Y, Nishimura, Y, Sugimura, K
Organizer
93rd Scientific Assembly and Annual Meeting of Radiological Society of North America
Place of Presentation
Chicago, USA
Year and Date
20071125-30
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Oxygen-Enhanced MR Imaging vs. Quantitative CT: Efficacy of Pulmonary Functional Loss Assessment and Clinical Stage Classification of Smoking-Related COPD2007
Author(s)
Ohno, Y, Koyama, H, Nogami, M, Takenaka, D, Ohara, M, van, Cauteren, M, Matsumoto, S, Sugimura, K, Dynamic
Organizer
Joint Annual Meeting International Society of Magnetic Resonance in Medicine-European Society of Magnetic Resonance in Medicine and Biology
Place of Presentation
Berlin, Germany
Year and Date
20070519-25
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Oxygen-enhanced MR Imaging vs. Quantitative CT: Capability of Pulmonary Functional Loss Assessment and Clinical Stage Classification in Smoking-related COPD Subjects2007
Author(s)
Ohno, Y, Koyama, H, Nogami, M, Takenaka, D., Yoshikawa, T, Snaimnra, K., Dynamic
Organizer
19th European Congress of Radiology
Place of Presentation
Vienna, Austria
Year and Date
20070307-11
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Dynamic Oxygen-enhanced MR Imaging: Capability of Pulmonary Functional Loss Assessment and Clinical Stage Classification in Smoking-related COPD Subiects2006
Author(s)
Ohno, Y, Koyama, H, Nogami, M., Takenaka, D., Kawamitc, H, Ohara, M, Sugimura, K
Organizer
34th Annual meeting of Japanese Society of Magnetic Resonance in Medicine
Place of Presentation
Tsukuba
Year and Date
20060914-16
Description
「研究成果報告書概要(欧文)」より
